after-change-style

Called after the style is changed for a given range (and after the display is refreshed; use on-change-style and begin-edit-sequence to avoid extra refreshes when after-change-style modifies the editor).

See also can-change-style? and on-edit-sequence.

No internals locks are set when this method is called.

• (send a-text after-change-style start len) -> void
      start : exact non-negative integer
      len : exact non-negative integer